Fix the error of dasdfmt
Fix the error of dasdfmt

No '-f' option for dasdfmt.

Signed-off-by: QingFeng Hao <b6a11064688d74b2df1d8ed3d12ea7fd94ebd950@linux.vnet.ibm.com>

mfcloud/python-zvm-sdk,mfcloud/python-zvm-sdk,mfcloud/python-zvm-sdk,mfcloud/python-zvm-sdk